LLM Comparison

Claude Opus 5 vs GLM-5.3-Flash: benchmark scores, pricing & comparison.

Side-by-side Claude Opus 5 vs GLM-5.3-Flash comparison across SWE-bench, GPQA, HLE, Terminal-Bench, coding agent scores, token pricing, context window, and AskClash RWT. Green marks the winner on each benchmark.

Open live leaderboardClaude Opus 5 model pageGLM-5.3-Flash model page
Rank #3 vs #19AskClash overall scores 72.9 vs 62.9.
Pricing $5.00/$25.0 vs $0.15/$0.50Input and output token prices per 1M tokens when published.
Proprietary vs Open WeightAnthropic vs Z.AI.

Claude Opus 5 vs GLM-5.3-Flash benchmark comparison

Green cells highlight the winning model for each metric. Scores are cached from the AskClash LLM leaderboard snapshot.

MetricClaude Opus 5GLM-5.3-Flash
Overall Score72.962.9
Leaderboard Rank#3#19
ACB70.561.2
RWT9.08.5
Coding Agent Index59.7—
HLE64.755.3
GPQA93.291.2
SWE-bench96.0—
SWE-Pro79.2—
SWE-Atlas62.1—
Terminal-Bench—84.3
DeepSWE73.663.4
GDPval-AA1861.01773.0
MCP Atlas85.8—
Finance Agent58.657.9
CharXiv—89.4
MMMU-Pro84.7—
ARC-AGI 290.4—
Input Price (per 1M tokens)$5.00$0.15
Output Price (per 1M tokens)$25.0$0.50
Context Window1M1M
Benchmarks Published149

Claude Opus 5 vs GLM-5.3-Flash head-to-head charts

Claude Opus 5 leads 8 and GLM-5.3-Flash leads 0 of 8 shared benchmarks. GLM-5.3-Flash is cheaper on a defined 1M-input / 200K-output workload. Charts show only benchmarks both models publish.

Claude Opus 5GLM-5.3-Flash
Overall
72.9Claude Opus 5
62.9GLM-5.3-Flash
ACB
70.5Claude Opus 5
61.2GLM-5.3-Flash
RWT
9.0Claude Opus 5
8.5GLM-5.3-Flash
HLE
64.7Claude Opus 5
55.3GLM-5.3-Flash
GPQA
93.2Claude Opus 5
91.2GLM-5.3-Flash
DeepSWE
73.6Claude Opus 5
63.4GLM-5.3-Flash
GDPval-AA
1861.0Claude Opus 5
1773.0GLM-5.3-Flash
Finance Agent
58.6Claude Opus 5
57.9GLM-5.3-Flash
Claude Opus 5
Input$5.00
Output$25.0
Workload$10
Context1M
GLM-5.3-Flash
Input$0.15
Output$0.50
Workload$0.25
Context1M

Workload = published cost of 1M input + 200K output tokens. Open the live leaderboard for interactive compare charts.

More Claude Opus 5 and GLM-5.3-Flash comparisons

Explore how Claude Opus 5 and GLM-5.3-Flash stack up against other top-ranked LLMs.

Claude Fable 5.1 vs Claude Opus 5Claude Fable 5.1 vs GLM-5.3-FlashClaude Fable 5 vs Claude Opus 5Claude Fable 5 vs GLM-5.3-FlashClaude Opus 5 vs GPT-5.6 SolGPT-5.6 Sol vs GLM-5.3-FlashClaude Opus 5 vs Qwen3.8 MaxQwen3.8 Max vs GLM-5.3-FlashClaude Opus 5 vs GPT-6 AstraGPT-6 Astra vs GLM-5.3-Flash

How to read this comparison

Benchmark scores

Higher is better for all benchmark scores (SWE-bench, GPQA, HLE, Terminal-Bench, etc.). Green marks the model with the higher score.

Token pricing

Lower is better for input and output prices. Green marks the cheaper model per 1M tokens.

Coverage matters

Models with fewer disclosed benchmark cells may have inflated percentile scores. Check the benchmark cell count for context.

This comparison page is generated from the AskClash LLM leaderboard cache. Open the live leaderboard for real-time scores and interactive filtering.